2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50194We describe the constraints imposed on quantum maximal supergravity theories in perturbation theory by the two duality frameworks: S-duality in superstring theory and the AdS/CFT holographic correspondence between IIB superstring theory and N=4 super Yang-Mills theory.LaTeX, 11 pages, references addedHigh Energy Physics - TheoryHigh Energy Physics - Phenomenologytext